ITALY. Milano (Duchi). Gian Galeazzo Visconti, 1395-1402. Grosso (Silver, 24 mm, 2.29 g, 7 h). Coiled serpent flanked by G-3; all within quadrilobe. Rev. Ambrosio seated facing, holding flagellum and crozier. Biaggi 1475. Crippa Crippa 4/a. Very fine.